"It's all a mystery, the most pretty mystery of life," Wanhoperesumed. "I don't believe I could make out the case as I feel it to be."

"Braybridge's part of the case is rather plain, isn't it?" I invitedhim.

"I'm not sure of that. No man's part of any case is plain, if you lookat it carefully. The most that you can say of Braybridge is that he israther a simple nature. But nothing," the psychologist added, with oneof his very deep breaths, "is so complex as a simple nature."

"Well," Minver contended, "Braybridge is plain, if his case isn't."

"Plain? Is he plain?" Wanhope asked, as if asking himself.